Portable device, display apparatus, display system, and method for controlling power of display apparatus thereof

ABSTRACT

A portable device, a display apparatus, a display system, and a method for controlling power of a display apparatus thereof are provided. The method includes sensing, while a portable device operates in a standby mode, a movement of the portable device using a motion sensor, converting, using the portable device, the standby mode of the portable device into a normal mode in response to the movement of the portable device being sensed, generating, using the portable device, a pre-power on signal in response to the standby mode being converted into the normal mode, transmitting the pre-power on signal to the display apparatus, and activating, by the display apparatus, some elements of the display apparatus in response to the pre-power on signal being received.

CROSS-REFERENCE TO RELATED APPLICATIONS

This is a Divisional of U.S. application Ser. No. 14/329,288 filed onJul. 11, 2014, which claims priority from Korean Patent Application No.10-2013-0082352, filed on Jul. 12, 2013, in the Korean IntellectualProperty Office and Korean Patent Application No. 10-2014-0082545, filedon Jul. 2, 2014, in the Korean Intellectual Property Office, thedisclosures of which are incorporated herein by reference in itsentireties.

BACKGROUND

1. Field

Apparatuses and methods consistent with exemplary embodiments relate toa portable device, a display apparatus, a display system, and a methodfor controlling power of a display apparatus thereof, and moreparticularly, to a portable device, a display apparatus, a displaysystem, and a method for controlling power of a display apparatusthereof, which can control power of the display apparatus using theportable device.

2. Description of the Related Art

Various display apparatuses such as a digital television (TV), etc. haveundergone rapid development in all aspect of the device such as theaddition and improvement of many features as well as the quality of theimage and sound produced by the apparatuses. Further, the TV hasevolved, from an analogue TV through which users simply view broadcasts,into a digital TV through which users view and enjoy various content. Asthe TV has evolved into the digital TV, a booting time that is requiredto display a digital broadcast or perform a smart function (for example,a web browsing function, etc.) after the TV has been turned on issomewhat prolonged in comparison with the responsiveness of the analogueTV

For example, in the case of the digital TV, the booting time that istaken when the TV is initially turned on is a time that is requiredevery time that the TV is turned on. The entirety of the booting time ispreserved by a user as time taken prior to reaching the intended featureso any time taken for booting is not a short time as experienced by theuser who wishes to watch the TV promptly. Although the booting time hasbecome shorter in recent years as the processor has been improved andS/W technology has been developed, there is a hardware limit.

SUMMARY

According to an aspect of an exemplary embodiment, there is provided amethod for controlling power of a display apparatus of a display system,the method includes sensing, while a portable device operates in astandby mode, a movement of the portable device using a motion sensor,converting, using the portable device, the standby mode of the portabledevice into a normal mode in response to the movement of the portabledevice being sensed, generating, using the portable device, a pre-poweron signal in response to the standby mode being converted into thenormal mode, transmitting the pre-power on signal to the displayapparatus, and activating, by the display apparatus, some elements ofthe display apparatus in response to the pre-power on signal beingreceived.

The method may further include generating a power-on signal using theportable device, transmitting the power-on signal to the displayapparatus in response to inputting of a user command configured toselect a preset button of the portable device, and activating, by thedisplay apparatus, some additional elements of the display apparatus inresponse to the power on signal being received.

The standby mode may be configured such that the motion sensor of theportable device is maintained in an activated state, and a controllerand a communicator of the portable device are maintained in aninactivated state.

The converting may include generating, using the motion sensor, aninterrupt signal in response to the movement of the portable devicebeing sensed, transmitting, using the motion sensor, the interruptsignal to the controller and the communicator, and activating thecontroller and the communicator into the activated state based on theinterrupt signal.

The transmitting may include transmitting, using the communicator, acommunication connection request signal to the display apparatus afterthe mode of the portable device is changed into the normal mode,performing, using the communicator, communication connection with thedisplay apparatus in response to a signal responding to thecommunication connection request signal being received from the displayapparatus, generating, using the controller, the pre-power on signal andoutputting the pre-power on signal to the communicator, andtransmitting, using the communicator, the pre-power on signal to thedisplay apparatus.

Transmitting, using the communicator, of the pre-power on signal to thedisplay apparatus may use at least one of Bluetooth communicationmethod, ZigBee communication method, and Wi-Fi communication method.

The transmitting may include transmitting, by the communicator, acommunication connection request signal to the display apparatus as thepre-power on signal after the standby mode of the portable device isconverted to the normal mode.

The method may further include converting, using the display apparatus,the normal mode of the display apparatus to the standby mode in responseto a power on signal not being received while the pre-power on modeactivating some elements is maintained by the display apparatus.

The method may further include deactivating the pre-power on function ofthe display apparatus in response to the display apparatus beingconverted from the pre-power on mode to the standby mode for a presetnumber of times.

The method may further include outputting an indicator that one of thedisplay apparatus or the portable device is in the pre-power on mode inresponse to the pre-power on mode that activates some elements beingmaintained.

According to an aspect of another exemplary embodiment, there isprovided a display system, including a display apparatus, and a portabledevice configured to sense a movement of the portable device while thedisplay apparatus operates in a standby mode, convert the standby modeof the display apparatus into a normal mode, generate a pre-power onsignal to activate some elements of the display apparatus, and transmitthe generated pre-power on signal to the display apparatus.

The portable device may be further configured to generate a power onsignal and transmit the power on signal to the display apparatus inresponse to input of a user command to select a preset button of theportable device, wherein the display apparatus activates all theelements of the display apparatus in response to the power on signalbeing received.

The standby mode may be configured such that the motion sensor of theportable device is maintained in an activated state, and a controllerand a communicator of the portable device are maintained in aninactivated state.

The portable device may be further configured to generate, using themotion sensor, an interrupt signal in response to a movement of theportable device being sensed, transmit, using the motion sensor, theinterrupt signal to the controller and the communicator, and activatethe controller and the communicator.

The portable device may be further configured to transmit, using thecommunicator, a communication connection request signal to the displayapparatus, after the mode of the portable device is converted into thenormal mode, perform, using the communicator, communication connectionwith the display apparatus in response to a signal responding to thecommunication connection request signal being received from the displayapparatus, generate, using the controller, the pre-power on signal andoutputting the pre-power on signal to the communicator, and transmit,using the communicator, the pre-power on signal to the displayapparatus.

The portable device may be further configured to transmit the pre-poweron signal to the display apparatus using at least one of Bluetoothcommunication method, ZigBee communication method, and Wi-Ficommunication method.

The portable device may be further configured to transmit, using thecommunicator, a communication connection request signal to the displayapparatus as the pre-power on signal after the standby mode of theportable device is converted to a normal mode.

The display apparatus may be configured to convert, by the displayapparatus, the normal mode of the display apparatus to the standby modein response to a power on signal not being received while the pre-poweron mode activating some elements is maintained by the display apparatus.

The display apparatus may be further configured to be converted from thepre-power on mode to the standby mode for a preset number of times,wherein the pre-power on function of the display apparatus isinactivated.

The display apparatus may be configured to output an indicator that oneof the display apparatus of the portable device is in the pre-power onmode in response to the pre-power on mode that activates some elementsbeing maintained.

According to an aspect of another exemplary embodiment, there isprovided a portable device including a sensor configured to sense amovement of the portable device while the portable device operates in astandby mode, and convert a mode of the portable device into a normalmode, a controller configured to generate a pre-power on signal toactivate some elements of the display apparatus is response to thesensor sensing the movement of the portable device and the standby modebeing converted into the normal mode, and a communicator configured totransmit the generated pre-power on signal to the display apparatus,wherein the portable device is a remote controller.

According to an aspect of another exemplary embodiment, there isprovided a display apparatus including a communicator configured toconnect with a remote controller for communication in response thedisplay apparatus receiving a communication connection request signalfrom a remote controller while maintaining a standby mode, a display,and a controller configured to convert a mode into a pre-power on modeto activate some elements of the display apparatus in response to apre-power on signal being received from the remote controller throughthe communicator, and convert the pre-power on mode into a normal modeto activate the other elements of the display apparatus in response tothe display apparatus receiving a power on signal from the remotecontroller while maintaining the pre-power on mode.

BRIEF DESCRIPTION OF THE DRAWINGS

The above and/or other aspects will become apparent and more readilyappreciated from the following description of exemplary embodiments,taken in conjunction with the accompanying drawings, in which:

FIG. 1 is a view illustrating a display system according to an exemplaryembodiment;

FIG. 2 is a block diagram illustrating a configuration of a portabledevice according to an exemplary embodiment;

FIGS. 3 and 4 are block diagrams illustrating a configurations of adisplay apparatus according to one or more exemplary embodiments;

FIGS. 5a-5c are views of various indicators that guide a pre-power onmode according to one or more exemplary embodiments;

FIG. 6 is a flowchart illustrating a method for controlling power of adisplay apparatus of a portable device according to an exemplaryembodiment;

FIG. 7 is a flowchart illustrating a method for controlling power of adisplay apparatus according to an exemplary embodiment; and

FIGS. 8 to 9 are sequence diagrams illustrating methods for controllingpower of a display apparatus of a display system according to one ormore exemplary embodiments.

FIG. 10 is a flow chart illustrating a method for controlling a power ofa display apparatus, according to another exemplary embodiment.

DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS

Hereinafter, exemplary embodiments will be described in greater detailwith reference to the accompanying drawings.

In the following description, same reference numerals are used for thesame elements when they are depicted in different drawings. The mattersdefined in the description, such as detailed construction and elements,are provided to assist in a comprehensive understanding of exemplaryembodiments. Thus, it is apparent that exemplary embodiments can becarried out without those specifically defined matters. Also, functionsor elements known in the related art are not described in detail becausethey would obscure the exemplary embodiments with unnecessary detail.

FIG. 1 is a view illustrating a configuration of a display system 100according to an exemplary embodiment. As shown in FIG. 1, the displaysystem 100 includes a portable device 110 and a display apparatus 200.The portable device 110 may be a general remote controller forcontrolling a TV. However, this is merely an example. The portabledevice 110 may be a portable terminal such as a smartphone, a tablet PC,a key fob, a gaming pad, etc. Also, the display apparatus 120 may be adigital TV. However, this is merely an example. The display apparatus120 may be an electronic apparatus such as a set-top box, a projectionTV, a desktop PC, a tablet PC, a smart phone, etc.

Further, the display system 100 may include more than one displaydevice, particularly, the display system 100 may also include a computermonitor 130 which is configured to also communicate with the remotecontroller 110. The display system 100 may also include a projector 140that is configured to communicate with the remote controller as well.

When it is determined that there is no movement of the portable device100, the portable device 110 may convert a mode of one or both of theremote controller 110 and the display apparatus 120 into a standby mode.Specifically, the portable device 110 may determine whether there ismovement using a sensor, for example, a motion sensor, which is providedin or on the portable device 110. Accordingly, when there is no movementin the portable device 110 for a predetermined time, the portable device110 may convert the mode of the display apparatus 120 into the standbymode. The standby mode may be a mode in which elements, other than themotion sensor for sensing the movement of the portable device 110, aretransitioned to, or maintained in, an inactivated state.

During a time when the portable device 110 is maintaining the standbymode, the portable device 110 may sense movement of the portable device110 using the motion sensor.

When the movement of the portable device 110 is sensed, the portabledevice 110 may convert the mode from the standby mode into a normalmode. Specifically, when the portable device 110 senses its own movementthrough the motion sensor, the motion sensor of the portable device 110may generate an interrupt signal, and may output the interrupt signal tothe other elements (for example, a controller, a communicator, etc.) ofthe portable device 100, thereby activating the other elements of theportable device 110.

When the movement of the portable device 110 is sensed and the mode isconverted into the normal mode, the portable device 110 may generate apre-power on signal and transmit the pre-power on signal to the externaldisplay apparatus 120. The pre-power on signal is a signal configured toactivate some elements (for example, a controller, etc.) of the displayapparatus 120 before the entire display apparatus 120 is powered on.Also, the portable device 110 may transmit the pre-power on signal tothe display apparatus 120 using a communication method other than aninfrared ray (IR) communication method.

Specifically, the portable device 110 may transmit the pre-power onsignal to the display apparatus 120 by using Bluetooth communication. Inaddition, the portable device 110 may transmit a communicationconnection request signal to connect communication with the displayapparatus 120 to the display apparatus 120 as a pre-power on signal.

When the pre-power on signal is received, the display apparatus 120 maydetermine whether that the display apparatus 120 is in a standby mode ora normal mode. The standby mode is a mode in which elements other than acommunicator of the display apparatus 120 are inactivated, and thenormal mode is a mode in which all of the elements of the displayapparatus 120 are activated.

When the display apparatus 120 is in the normal mode, the displayapparatus 120 may disregard the pre-power on signal. However, when thedisplay apparatus 120 is in the standby mode, the display apparatus 120may convert the mode of the display apparatus 120 from the standby modeinto a pre-power on mode. The pre-power on mode is a mode in which someelements (for example, the controller) for driving the display apparatus120 are activated. When the display apparatus 120 enters the pre-poweron mode, the display apparatus 120 may also start to track the amount oftime that transpires.

While the display apparatus 120 maintains the pre-power on mode, theportable device 110 may determine whether a user command to select apower on button is input. When the power on button is selected, theportable device 110 may generate a power on signal and may transmit thepower on signal to the display apparatus 120. However, when the power onbutton is not selected and no movement is sensed for a predeterminedtime, the portable device 110 may return to the standby mode. Similarly,the display apparatus 120 may return to the standby mode as well after apredetermined time transpires without any further signaling from theremote controller 110.

Alternatively, when the power on signal is received from the portabledevice 110 within a predetermined time while the display apparatus 120maintains the pre-power on mode, the display apparatus 120 may convertthe mode of the display apparatus 120 from the pre-power on mode intothe normal mode. That is, the display apparatus 120 may activate theother elements of the display apparatus 200, such as a display and anaudio outputter.

When the power on signal is not received from the portable device 110within the predetermined time while the display apparatus 120 maintainsthe pre-power on mode, the display apparatus 120 may convert the mode ofthe display apparatus 120 from the pre-power on mode into the standbymode.

As described above, because some elements of the display apparatus 120are activated and booted the moment that the user moves the portabledevice 110, the user may perceive that the display apparatus 120 is ableto boot more quickly than the related-art display apparatus, which isbooted when the user selects the power on button of the portable device110.

Hereinafter, according to an exemplary embodiment, a portable devicewill be explained in detail with reference to FIG. 2. As shown in FIG.2, the portable device 200 includes a sensor 210, a communicator 220, aninputter 230, and a controller 240. As described above, the portabledevice 200 may be a general portable device 200 only for controlling adigital TV. However, this is an example and the portable device 200which may be implemented in many different ways such as by using aportable terminal such as a smartphone, a tablet PC, a personal digitalassistant (PDA), etc.

FIG. 2 illustrates various elements of the portable device 200 as anexample of an apparatus equipped with a display apparatus controlfunction. Accordingly, some of the elements shown in FIG. 2 may beomitted or changed, and another element may be further included. Forexample, when the portable device 200 is implemented by using asmartphone, elements like a display and an audio outputter may be added.

The sensor 210 may sense a user's motion using at least one motionsensor. The motion sensor may be implemented by using a plurality ofmotion sensors such as acceleration sensors, geomagnetic sensors, orgyro sensors.

In particular, although the sensor 210 includes the plurality of motionsensors, the sensor 210 may determine the movement of the portabledevice 200 using one motion sensor (for example, an acceleration sensor)in order to minimize power consumption while the portable device 200maintains the standby mode.

Further, while the portable device 200 is in the standby mode, thesensor 210 may be activated at intervals of a particular time, sensesthe movement for a set time, and then it may be inactivated. The sensor210 may then repeat these operations during the time in which the remotecontroller 210 is in the standby mode. The sensor 210 may sense themovement at a lower frequency while in the standby mode as compared tothe normal mode such that power consumption can be reduced.

When a sensed movement of the portable device 200 is larger than apredetermined value, and the portable device 200 is in the standby mode,the sensor 210 may convert the mode of the portable device 200 from thestandby mode into the normal mode. Specifically, the sensor 210generates an interrupt signal, outputs the interrupt signal to theinactivated controller 240 and the communicator 220 and activates thecontroller 240 and the communicator 220

The sensor 210 may generate the interrupt signal and output theinterrupt signal to the controller 240 and the communicator 220,respectively. This is an example and the sensor 210 may alternativelyoutput the interrupt signal only to the controller 240. The controller240 may be activated by the interrupt signal and may transmit theinterrupt signal to the other elements (for example, the communicator220, etc.).

When the movement of the portable device 200 is sensed while theportable device 200 maintains the normal mode, the sensor 210 maytransmit a data value corresponding to the movement of the portabledevice 200 to the controller 240.

Alternatively, according to one or more exemplary embodiments, thesensor may be, or include, a camera, a microphone, a near fieldcommunication sensor, a global positioning system (GPS) sensor, or somecombination of sensors thereof. Accordingly, the portable device mayhave a pre-selection or selection event that corresponds to any one of amotion, a particular image such as a gesture, a sound such as a vocalcommand, a near touch, a particular location, a particular programmedtime, or some combination thereof. The pre-selection event, whentriggered, may cause the portable device to activate and generate thepre-power on signal. The selection event, when triggered, may cause theportable device to activate and generate the power on signal.

Similarly, other sensor types could also be envisioned wherein thesensor input, once detected, is configured to trigger the state changein the portable device which in turn may trigger the state change in thedisplay apparatus from any one of a standby mode (or state) thatcorresponds to a passing of an certain amount of idle sensor time, apre-power on mode (or state) that corresponds to a pre-power on signal,and a normal mode (or state) that corresponds to a power on signal.

The communicator 220 may communicate with the external displayapparatus. Further, the communicator 220 may communicate with thedisplay apparatus using a wireless communication such as IRcommunication, ZigBee communication, Bluetooth communication, and Wi-Fi.

Also, the communicator 220 may transmit the pre-power on signal and thepower on signal to the display apparatus. In this case, the communicator220 may transmit a pre-power on signal to the display apparatus using acommunication method other than the IR method.

In addition, the communicator 220 may transmit to the display apparatusa control signal corresponding to a user command input through theinputter 230 using the IR communication method or another communicationmethod.

That is, the communicator 220 may transmit a control signal, a pre-poweron signal, and a power on signal using the same communication method,but this is merely exemplary, and may transmit the control signal, thepre-power on signal, and the power on signal corresponding to a usercommand using another communication method. For example, thecommunicator 220 may transmit the pre-power on signal and the power onsignal to the display apparatus using the Bluetooth communicationmethod, and the control signal corresponding to a user command to thedisplay apparatus using the IR communication method.

However, the above-described exemplary embodiments describe that, whencommunication is performed with the display apparatus using theBluetooth communication method, the controller 240 generates thepre-power on signal to convert a mode of the display apparatus to thepre-power on mode, but this is merely exemplary. Communicationconnection request signal may perform a role as the pre-power on signal.That is, when receiving a communication connection request from theportable device 200, the display apparatus may not only transmit thecommunication connection responding signal, but also convert the standbymode to the pre-power on mode.

Also, the communicator 220 may be maintained in the inactivated statewhile the portable device 200 maintains the standby mode and may beactivated when receiving the interrupt signal through the sensor 210.

In the above-described exemplary embodiment, the pre-power on signal isgenerated by the controller 240. However, this is merely an example,and, when the communicator 220 is activated by the interrupt signal, thecommunicator 220 may generate the pre-power on signal and may transmitthe pre-power on signal to the display apparatus.

The inputter 230 may receive a user command to control the displayapparatus. The inputter 230 may be implemented by using a plurality ofbuttons or a touch screen. According to an exemplary embodiment, theinputter 230 may include a power on button to turn on the power of thedisplay apparatus.

When a user command is input through the inputter 230, the controller240 may generate a control signal corresponding to the input usercommand and may transmit the control signal to the display apparatusthrough the communicator 220.

In particular, while the portable device 200 remains in the standbymode, the controller 240 may be maintained in the inactivated state.Also, when the interrupt signal is received by the sensor 210 while theportable device 200 remains in the standby mode, the controller 240 maybe activated. Also, the controller 240 may generate the pre-power onsignal to activate some of the elements of the display apparatus and maytransmit the pre-power on signal to the communicator 220 to transmit thepre-power on signal to the display apparatus.

In this case, in order to transmit the pre-power on signal to thedisplay apparatus using a communication method which requirescommunication connection such as Bluetooth communication method orZigBee communication method, the controller 240 may generate thepre-power on signal after the communicator 220 is connected with thedisplay apparatus for communication, and may output the pre-power onsignal to the communicator 220.

When a user command (for example, a user command to select the power onbutton) is input through the inputter 230 while the display apparatusmaintains the pre-power on mode, the controller 240 may generate thepower on signal to activate all of the elements of the display apparatus200 and may control the communicator 220 to transmit the power on signalto the display apparatus.

Further, when the movement of the portable device 200 is not sensed bythe sensor 210 within a predetermined time while the display apparatus200 maintains the pre-power on mode, the controller 240 may change themode of the portable device 200 into the standby mode and may inactivatethe portable device 200.

When the movement is sensed while the portable device 200 is in thestandby mode, the controller 240 generates the pre-power on signal. Whenthe movement of the remote controller is sensed while the portabledevice 200 is in the normal mode (for example, while there is nomovement in the portable device 200 but the portable device 200 is inthe normal mode), the controller 240 may generate the pre-power onsignal.

The portable device 200 may transmit the pre-power on signal to thedisplay apparatus 200 to boot the display apparatus the moment that theuser holds the portable device 200. Therefore, the display apparatus maybe booted when the user holds the portable device 200 rather than whenthe user presses the power on button of the portable device 200. Also,when the power on signal is received while the display apparatusmaintains the pre-power on mode, the display apparatus may directlydisplay a broadcast channel or perform a smart function. Accordingly,the user may feel that the time required to boot the display apparatusis shortened.

Hereinafter, a display apparatus will be explained in detail withreference to FIGS. 3 to 5 c.

FIG. 3 is a block diagram schematically illustrating a configuration ofthe display apparatus 300 according to an exemplary embodiment. As shownin FIG. 3, the display apparatus 300 includes a communicator 310, adisplay 320, and a controller 330.

The communicator 310 may communicate with the portable device. Inparticular, the communicator 310 may receive a control signalcorresponding to a user command from the portable device. Also, thecommunicator 310 may receive a pre-power on signal or a power on signalfrom the portable device.

The communicator 310 may communicate with the remote controller invarious wireless communication methods. Specifically, the communicator310 may communicate with the portable device using a wirelesscommunication method such as an IR communication method, a Zigbeecommunication method, a Bluetooth communication method, and a Wi-Ficommunication method.

The communicator 310 may be activated even when the display apparatus300 remains in the standby mode and may receive the pre-power on signalor a communication connection request signal from a portable device.

The display 320 may display image data under the control of thecontroller 330. In particular, the display 320 is inactivated while thedisplay apparatus 300 is in the standby mode and the pre-power on mode,and may then be activated when the mode of the display apparatus 300 istransitioned into the normal mode.

The controller 330 may control an overall operation of the displayapparatus 300 according to a user command received through the portabledevice. Further, the controller 330 may be inactivated while the displayapparatus 300 is in the standby mode.

When the pre-power on signal is received from the portable device by thecommunicator 310 while the display apparatus 300 is in the standby mode,the controller 330 may change the mode into a pre-power on mode toactivate some elements of the display apparatus. Specifically, when thepre-power on signal is received, the controller 330 may be activated andthe mode of the display apparatus 300 may be changed to the pre-power onmode. In this case, the pre-power on signal may be transmitted using acommunication method other than the IR communication method.

When the power on signal is received from the portable device within apredetermined time while the display apparatus 300 maintains thepre-power on mode, the controller 330 may change the mode of the displayapparatus 300 to the normal mode in order to activate the other elementsof the display apparatus 300. Specifically, when the power on signal isreceived from the portable device within the predetermined time whilethe display apparatus 300 maintains the pre-power on mode, thecontroller 330 may activate a data output configuration such as thedisplay 320 and may change the mode to the normal mode.

However, when the power on signal is not received within thepredetermined time while the display apparatus 300 maintains thepre-power on mode, the controller 330 may change the mode of the displayapparatus 300 to the standby mode.

Also, when conversion from the pre-power on mode into the standby modeis repeated a predetermined number of times, the controller 330 mayinactivate the pre-power on function of the display apparatus 300 inorder to prevent unnecessary power consumption.

FIG. 4 is a block diagram illustrating the configuration of a displayapparatus 400 in detail according to an exemplary embodiment. As shownin FIG. 4, the display apparatus 400 includes a communicator 410, anindicator 440, a display 420, an audio outputter 450, storage 460, apower supply 470, and a controller 430.

FIG. 4 illustrates various elements of the display apparatus 400 as anexample of an apparatus equipped with a content providing function and adisplay function. Accordingly, some of the elements shown in FIG. 4 maybe omitted or changed and another element may be further included.

The communicator 410 communicates with a portable device. In particular,the communicator 410 may communicate with the portable device using anIR communication method, and may specifically communicate with theportable device using various wireless communication methods, such as aBluetooth communication method, a Wi-Fi communication method, and aZigbee communication method.

In the Bluetooth communication method and the Wi-Fi communicationmethod, the communicator 410 may communicate with the portable deviceusing a Bluetooth chip and a Wi-Fi chip, respectively. When the Wi-Fichip or Bluetooth chip is used, a variety of connection information suchas an SSID and a session key may be exchanged first and a variety ofinformation may be additionally exchanged after communication isestablished using the connection information. The wireless communicationmethod may include the use of various communication methods such asIEEE, 3^(rd) Generation (3G), 3^(rd) generation partnership project(3GPP), and long term evolution (LTE).

While the display apparatus 400 maintains the standby mode, thecommunicator 410 may receive the communication connection request signalfrom the portable device. Also, the communicator 410 may transmit thecommunication connection response signal and may communicate with theportable device. On the other hand, in the above-described exemplaryembodiment, the display apparatus 400 performs a pairing operation withthe portable device beforehand. When the display apparatus 400 has notperformed the pairing operation with the portable device, thecommunicator 410 may performs the pairing operation with the portabledevice. In this case, the pairing operation indicates operation that theportable device and the display apparatus 400 register each other'scommunication information (for example, ID information, passwordinformation, MAC address information). Accordingly, when communicationinformation is registered through the pairing operation, thecommunicator 410 may perform communication using pre-registeredcommunication information without a separate registration process.

The indicator 440 indicates that the display apparatus 400 is in thepre-power on mode. Specifically, when the pre-power on signal isreceived through the communicator 410 while the display apparatus 400remain in the standby mode, the indicator 440 may output an indicatorinforming that the display apparatus 400 is in the pre-power on mode.For example, an indicator, as illustrated in FIG. 5 a, may beimplemented by using a light emitting diode (LED) element included in abezel area of the display apparatus 500. According to another example,an indicator, as illustrated in FIG. 5 b, may be implemented by using anaudio output configuration which outputs a specific beep sound.

In another exemplary embodiment, the indicator 440 of the displayapparatus 400 outputs an indicator which guides the pre-power on mode.Alternatively, the portable device can also output an indicator whichguides the pre- mode. For example, when entering the pre-power on mode,the portable device may generate vibration, as illustrated in FIG. 5 c,with an indicator which guides the pre-power on mode.

The display 420 outputs image data under the control of the controller430. In particular, the display 420 may be inactivated while the displayapparatus 400 remains in the standby mode or the pre-power on mode, andreceives power from the power supply 470 and is activated when the modeof the display apparatus is changed to the normal mode.

The audio outputter 450 outputs audio data under the control of thecontroller 430. Like the display 420, the audio outputter 450 may beinactivated while the display apparatus 400 is in the standby mode orthe pre-power on mode, and receives power from the power supply 470 andis activated when the mode of the display apparatus 400 is changed tothe normal mode.

The storage 460 may store various modules for driving the displayapparatus 400. For example, the storage 460 may store software includinga base module, a sensing module, a communication module, a presentationmodule, a web browser module, and a service module. The base module is amodule that may process signals transmitted from each hardware elementthat is included in the display apparatus 400, and may transmit thesignals to an upper layer module. The sensing module is a module thatmay collect information from various sensors, and analyze and manage thecollected information, and may include a face recognition module, avoice recognition module, a motion recognition module, and a near fieldcommunication (NFC) recognition module. The presentation module is amodule that may generate a display screen, and may include a multimediamodule to reproduce and output multimedia content, and a UI renderingmodule to process a UI and graphics. The communication module is amodule for communicating with an external apparatus. The web browsermodule is a module that may perform web browsing and may access a webserver. The service module is a module that may include variousapplications for providing various services.

As described above, the storage 460 may include various program modules.However, some of the program modules may be omitted or changed oranother program module may be added according to the kind andcharacteristic of the display apparatus 400.

The power supply 470 may supply power received from an external sourceto the elements of the display apparatus 400 under the control of thecontroller 430. In particular, when the display apparatus 400 is in thestandby mode, the power supply 470 supplies power only to thecommunicator 410, and, when the display apparatus 400 is in thepre-power on mode, the power supply 470 supplies power to thecommunicator 410, the indicator 440, the controller 430, and the storage460. Further, when the display apparatus 400 is in the normal mode, thepower supply 470 may supply power to all of the elements of the displayapparatus 400.

The controller 430 may control an overall operation of the displayapparatus 400 according to a user command input through the portabledevice. Further, while the display apparatus 400 remain in the standbymode, the controller 430 may not receive power from the power supply 470and thus is maintained in the inactivated state.

When the pre-power on signal is received from the portable device whilethe display apparatus 400 is in the standby mode, the controller 430 mayreceive power from the power supply 470 and thus it may be activated.

When the display apparatus 400 communicates with the portable deviceusing the Bluetooth communication method, the controller 430 may beconnected with the portable device for communication and then mayreceive the pre-power on signal through the communicator 410.

When the pre-power on signal is received from the portable device andthe controller 430 is activated, the controller 430 counts a time. Thatis, when the mode of the display apparatus 400 is converted into thepre-power on mode, the controller 430 may count the time.

When the power on signal is received within a predetermined time and thedisplay apparatus 400 remains in the pre-power on mode, the controller430 may change the mode of the display apparatus 400 into the normalmode in order to activate the other elements of the display apparatus400. Specifically, when the power on signal is received from theportable device within the predetermined time while the displayapparatus 400 maintains the pre-power on mode, the controller 430 maycontrol the power supply 470 to activate the other elements like thedisplay 420 and the audio outputter 450.

However, when the power on signal is not received within thepredetermined time when the display apparatus 400 is in the pre-power onmode, the controller 430 may change the mode of the display apparatus400 into the standby mode. That is, the controller 430 controls thepower supply 470 to inactivate the controller 430, the indicator 440,and the storage 460.

When the display apparatus 400 is converted from the pre-power on modeinto the standby mode rather than into the normal mode, the controller430 may count a number of times that the display apparatus 400 isconverted from the pre-power on mode into the standby mode.

When the number of times that the pre-power on mode is converted intothe standby mode is greater than a predetermined number, the controller430 may determine that the user moves the portable device with adifferent intention other than the intention of controlling the displayapparatus 400, and may inactivate the pre-power on function of thedisplay apparatus 400 in order to prevent unnecessary power consumption.That is, when conversion from the pre-power on mode into the standbymode is repeated a predetermined number of times, the controller 430 maymaintain the standby mode instead of converting the mode of the displayapparatus 400 into the pre-power on mode even when the pre-power onsignal is received in the standby mode. In this case, in order to turnon power of the display apparatus 400, the user should select the poweron button.

However, when the power on signal is received, the controller 430 mayactivate the inactivated pre-power on function again.

On the other hand, when the display apparatus 400 is in the normal modeand the pre-power on signal is received from the portable device, thecontroller 430 may disregard the pre-power on signal received from theportable device and may maintain the normal mode.

As described above, simply by holding the remote controller prior topressing the power on button, the user can have some elements of thedisplay apparatus 400 activated and have the display apparatus booted,such that the user can feel that the display apparatus 400 is bootedmore quickly.

FIG. 5A is a view that illustrates an indicator 510 of a displayapparatus 500 according to an exemplary embodiment. FIG. 5B is a viewthat illustrates an indicator emitting a “beep beep˜ ˜” indicator soundfrom the display apparatus 500.

Hereinafter, a method for controlling power of a display apparatusaccording to various exemplary embodiments will be explained withreference to FIGS. 6 to 10.

FIG. 6 is a flowchart to illustrate a method for controlling power of adisplay apparatus of a portable device according to an exemplaryembodiment.

First, the portable device maintains a standby mode (S610).Specifically, when there is no movement in the portable device for apredetermined time, the portable device enters the standby mode andmaintains the standby mode. The standby mode of the remote controllerrefers to a state in which only a motion sensor is activated and theother elements are inactivated.

While maintaining the standby mode, the portable device senses amovement of the portable device (S620). Specifically, the portabledevice may sense the movement of the portable device using at least oneof a plurality of motion sensors.

When the movement of the portable device is sensed (S620-Y), theportable device converts the mode into a normal mode (S630).Specifically, when movement of the portable device is sensed, the motionsensor of the portable device may generate an interrupt signal and mayoutput the interrupt signal to the other elements of the portabledevice, for example, a controller and a communicator. Also, when theother elements of the portable device receive the interrupt signal, theother elements of the portable device may be activated and the mode ofthe portable device is converted into the normal mode.

The portable device generates a pre-power on signal (S640). At thistime, the pre-power on signal may be a signal for activating someelements (for example, a controller, etc.) of a display apparatus andconverting a mode of the display apparatus into a pre-power on mode.However, the portable device, in order to transmit the pre-power onsignal, may communicate with the display apparatus before transmittingthe pre-power on signal.

The portable device transmits the generated pre-power on signal to thedisplay apparatus (S650). When the pre-power on signal is received, thedisplay apparatus may convert the mode of the display apparatus from astandby mode into a pre-power on mode. When the display apparatusmaintains a normal mode and receives the pre-power on signal, thedisplay apparatus still maintains the normal mode without converting themode into the pre-power on mode.

The portable device determines whether a power on button is selected ornot (S660). The power on button may be a button for receiving a usercommand to convert the mode of the display apparatus into the normalmode.

When the power on button is selected (S660-Y), the portable devicegenerates a power on signal and transmits the power on signal to thedisplay apparatus (S670). When the power on signal is received while thedisplay apparatus is in the pre-power on mode, the display apparatus mayactivate the other elements and change the mode into the normal mode.

FIG. 7 is a flowchart that illustrates a method for controlling power ofa display apparatus according to an exemplary embodiment.

First, the display apparatus maintains a standby mode (S710). Thestandby mode of the display apparatus is a mode in which the displayapparatus is connected to a power supply apparatus but elements otherthan a communicator are inactivated.

While the display apparatus is in the standby mode, the displayapparatus may determine whether a communication connection requestsignal is received (S720). For example, when the display apparatuscommunicates with the portable device using a Bluetooth communicationmethod or ZigBee communication method, the display apparatus may receivethe communication connection request signal from the portable device.

When the communication connection request signal is received (S720-Y),the display apparatus is connected with the portable device forcommunication (S730). Specifically, when the communication connectionrequest signal is received from the portable device (S720-Y), thedisplay apparatus transmits a communication connection response signaland is connected with the portable device for communication.

The display apparatus determines whether a pre-power on signal isreceived from the portable device (S740).

When the pre-power on signal is received (S740-Y), the display apparatusconverts the mode of the display apparatus into a pre-power on mode(S750). The pre-power on mode is a mode in which some elements of thedisplay apparatus (for example, a controller, an indicator, a storage,etc.) are activated. When the mode is converted into the pre-power onmode, the display apparatus may output an indicator (for example, aflickering LED provided on a bezel as shown in FIGS. 5A and 5B)informing that the current mode of the display apparatus is thepre-power on mode.

According to an exemplary embodiment, when the display apparatus is aprojector, a lamp within the projector which requires substantial timeto warm up for use, may be an included element that is activated whenthe pre-power on mode is entered. Additionally, according to anotherexemplary embodiment, the portable device may activate the lamp before amotion is detected and therefore may start warming up the lamp evenbefore the pre-power on mode is entered. For example, the portabledevice may detected that the user has made a motion, has entered theroom, had provided a vocal command, or has come near the portabledevice, any of which may indicate that the lamp should be activated.Then, when the portable device detects a motion and/or a button input,the portable device may proceed with entering a different mode fromstandby as described.

Also, the display apparatus determines whether a power on signal isreceived from the portable device within a predetermined time (S760).

When the power on signal is received within the predetermined time(S760-Y), the display apparatus converts the mode of the displayapparatus into a normal mode (S770). The normal mode is a mode in whichall of the elements of the display apparatus are activated.

However, when the power on signal is not received within thepredetermined time (S760-N), the display apparatus converts the mode ofthe display apparatus into the standby mode (S780). That is, when thepower on signal is not received within the predetermined time, thedisplay apparatus determines that the user will not use the displayapparatus and converts the mode of the display apparatus into thestandby mode in order to prevent unnecessary power consumption.

FIG. 8 is a sequence diagram to illustrate a method for controllingpower of a display apparatus of a display system according to anexemplary embodiment.

In the exemplary embodiment of FIG. 8, a display apparatus 820 and aportable device 810 communicate with each other using a Bluetoothcommunication method. In the present exemplary embodiment, the displayapparatus 820 and the portable device 910 performs a pairing operationbeforehand.

First, the portable device 810 and the display apparatus 820 eachmaintain a standby mode (S905 and S910). The standby mode of theportable device 810 may be a mode in which only a motion sensor isactivated, and the standby mode of the display apparatus 820 may be amode in which only a communicator is activated.

Also, the portable device 810 senses a movement of the remote controller(S915). Specifically, the portable device 810 may sense the movement ofthe portable device 910 using at least one motion sensor.

The portable device 810 converts the mode of the portable device 910into a normal mode (S920). The normal mode of the portable device 810 isa mode in which all elements of the portable device 910 are activated.

The portable device 810 transmits a communication connection requestsignal to the display apparatus 820 (S925), and the display apparatus820 transmits a communication connection response signal to the portabledevice 810 (S930). Accordingly, the portable device 810 and the displayapparatus 820 communicate with each other.

The portable device 810 generates a pre-power on signal (S935) andtransmits the pre-power on signal to the display apparatus 820 (S940).

The display apparatus 820 converts the mode of the display apparatusinto a pre-power on mode (S945). The pre-power on mode is a mode inwhich some elements of the display apparatus 820 (for example, acontroller, etc.) are activated. When the mode of the display apparatus820 is converted into the pre-power on mode, the display apparatus 820may output an indicator informing that the current mode of the displayapparatus 820 is the pre-power on mode.

After the mode of the display apparatus 820 is converted into thepre-power on mode, the portable device 810 receives a power on buttonselection command (S950).

The portable device 810 generates a power on signal (S955) and transmitsthe power on signal to the display apparatus 820 (S960).

When the power on signal is received, the display apparatus 820 convertsthe mode of the display apparatus 820 into a normal mode (S965). Thenormal mode of the display apparatus 820 refers to a state in which allelements of the display apparatus 820 are activated.

As described above in FIG. 8, when the portable device 100 transmits thepre-power on mode using the Bluetooth communication method, thetransmission accuracy may be increased in comparison with the IRcommunication method. Specifically, because the IR communication hasdirectionality, when the portable device 100 communicating in the IRcommunication method is not directed toward the display apparatus 820,smooth communication may not be achieved. Accordingly, when thepre-power on signal is transmitted in the Bluetooth communicationmethod, the possibility that the pre-power on signal is not transmittedis lower than in the IR communication method.

FIG. 9 is a sequence diagram to illustrate a method for controllingpower of a display apparatus of a display system according to anotherexemplary embodiment. In the exemplary embodiment of FIG. 9, a displayapparatus 920 and a portable device 910 communicate with each otherusing the Bluetooth communication method. Also, in the present exemplaryembodiment, the display apparatus 920 and the portable device 910performs a pairing operation beforehand.

First, the portable device 910 and the display apparatus 920 eachmaintain a standby mode (S1005 and S1010). The standby mode of theportable device 910 may be a mode in which only a motion sensor isactivated, and the standby mode of the display apparatus 920 may be amode in which only a communicator is activated.

The portable device 910 senses a movement of the portable device910(S1015). Specifically, the portable device 910 may sense the movementof the portable device 910 using at least one motion sensor.

Also, the portable device 910 converts the mode of the portable device910 into a normal mode (S1020). The normal mode of the portable device910 is a mode in which all elements of the portable device 910 areactivated.

The portable device 910 transmits a communication connection requestsignal to the display apparatus 920(S1025), and the display apparatus920 transmits a communication connection response signal to the portabledevice 910(S1030). Accordingly, the portable device 910 and the displayapparatus 920 communicate with each other.

In particular, the display apparatus 920 converts the mode into apre-power on mode in response to the communication connection requestsignal (S1035). That is, when the communication connection requestsignal is received without receiving a separate pre-power on signal, thedisplay apparatus 920 may convert the mode of the display apparatus 920into the pre-power on mode. When the mode of the display apparatus 920is converted into the pre-power on mode, the display apparatus 920 mayoutput an indicator informing that the current mode of the displayapparatus 920 is the pre-power on mode.

After the mode of the display apparatus 920 is converted into thepre-power on mode, the portable device 910 receives a power on buttonselection command (S1040).

The portable device 910 generates a power on signal (S1045) andtransmits the power on signal to the display apparatus 920 (S1050).

When the power on signal is received, the display apparatus 920 convertsthe mode of the display apparatus 920 into a normal mode (S1055). Thenormal mode of the display apparatus 920 refers to a state in which allelements of the display apparatus 920 are activated.

As explained in FIG. 9, when the portable device 910 transmits thepre-power on mode using the Bluetooth communication method, thetransmission accuracy may be increased in comparison with the IRcommunication method. Also, because the mode of the display apparatus920 is directly converted into the pre-power on mode in response to thecommunication connection request signal, the portable device 910 is notrequired to generate and transmit the pre-power on signal and thus thedisplay apparatus 920 can be booted more quickly.

FIG. 10 is a flow chart to explain a method for controlling power of thedisplay apparatus of a portable device, according to another exemplaryembodiment.

First, the portable device maintains a standby mode (S1110).Specifically, when there is no movement in or by the remote controllerfor a predetermined time, the portable device sets a mode to the standbymode and maintains the standby mode. The standby mode of the portabledevice refers to a state in which only some of the motion sensors (forexample, an acceleration sensor) are activated and the other elementsare inactivated.

While maintaining the standby mode, the portable device may sense amovement of the portable device (S1120). Specifically, the portabledevice may sense the movement of the portable device using the activatedmotion sensor.

When the movement of the portable device is sensed (S1120-Y), theactivated motion sensor generates an interrupt signal (S1130). Theinterrupt signal is a signal for activating the elements of the portabledevice and the activated motion sensor transmits the interrupt signal toa controller.

The controller, the other motion sensors which are inactivated, and acommunicator are activated by the interrupt signal, respectively (S1140,S1150, and S1160). The activated motion sensor may generate theinterrupt signal and transmit the interrupt signal to the controller,the other motion sensors which are inactivated, and the communicator.However, this is merely an example. The activated motion sensor maygenerate the interrupt signal and transmit the interrupt signal to thecontroller. The controller may activate the other motion sensors whichare inactivated and the communicator. The communicator may beimplemented by using a Bluetooth module.

When the communicator is activated, the portable device may be connectedwith a display apparatus for communication (S1170). At this time, theportable device may be connected with the display apparatus forcommunication through the Bluetooth module.

The portable device transmits a pre-power on signal to the displayapparatus (S1180). Specifically, the portable device may transmit thepre-power on signal to the display apparatus through the Bluetoothmodule.

A program code to perform the method for controlling the power of thedisplay apparatus according to the above-described exemplary embodimentsmay be stored in various kinds of recording media. Specifically, theprogram code may be stored in various kinds of recording media readableby a terminal, such as a random access memory (RAM), a flash memory, aread only memory (ROM), an erasable programmable ROM (EPROM), anelectronically erasable and programmable ROM (EEPROM), a register, ahard disk, a removable disk, a memory card, a USB memory, and a CD-ROM.

The foregoing exemplary embodiments and advantages are merely exemplaryand are not to be construed as limiting the present inventive concept.The exemplary embodiments can be readily applied to other types ofapparatuses. Also, the description of the exemplary embodiments isintended to be illustrative, and not to limit the scope of the claims,and many alternatives, modifications, and variations will be apparent tothose skilled in the art.

What is claimed is:
 1. A portable device comprising: a sensor configuredto sense a movement of the portable device while the portable deviceoperates in a standby mode, and convert a mode of the portable deviceinto a normal mode; a controller configured to generate a pre-power onsignal to activate some elements of a display apparatus is response tothe sensor sensing the movement of the portable device and the standbymode being converted into the normal mode; and a communicator configuredto transmit the generated pre-power on signal to the display apparatus,wherein the portable device is a remote controller.
 2. A displayapparatus comprising: a communicator configured to connect with a remotecontroller for communication in response the display apparatus receivinga communication connection request signal from the remote controllerwhile maintaining a standby mode; a display; and a controller configuredto convert a mode into a pre-power on mode to activate some elements ofthe display apparatus in response to a pre-power on signal beingreceived from the remote controller through the communicator, andconvert the pre-power on mode into a normal mode to activate otherelements of the display apparatus in response to the display apparatusreceiving a power on signal from the remote controller while maintainingthe pre-power on mode.
 3. A display system comprising: a portable devicecomprising: a remote standby mode wherein a sensor is active, andwherein the remote standby mode is triggered in response to passing ofan idle time limit corresponding to the sensor being idle; and a remotenormal mode wherein the portable device is completely active, andwherein the remote normal mode is triggered in response to the sensorreceiving an input; and a display apparatus comprising: a displaystandby mode wherein a communicator is active, and wherein the displaystandby mode is triggered in response to passing of an input time limit;a display pre-power on mode wherein the communicator and a controllerare active, and wherein the display pre-power on mode is triggered inresponse to receiving a pre-power on signal from the portable device;and a display normal mode wherein the display apparatus is completelyactive, and wherein the display normal mode is triggered in response toreceiving a power on signal from the portable device.
 4. The displaysystem of claim 3, wherein the display apparatus is at least one of atelevision, a computer monitor, and a projector.
 5. A method forcontrolling a display system, the method comprising: detecting, at aportable device, a pre-selection event and generating a pre-power onsignal based on the pre-selection event; receiving, at a displayapparatus, the pre-power on signal and partially activating a portion ofthe display apparatus based on the pre-power on signal; detecting, atthe portable device, a selection event and generating a power on signalbased on the selection event; and receiving, at the display apparatus,the power on signal and activating the entire display apparatus based onthe power on signal.
 6. The method of claim 5, further comprising:partially deactivating the display apparatus after a first idle timelimit has passed; and partially deactivating the portable device after asecond idle time limit has passed.
 7. The method of claim 5, wherein thepre-selection event is at least one from a group consisting of:detecting, using a motion sensor of the portable device, a movement ofthe portable device; detecting, using a camera, a user motion orposition; detecting, using a microphone, a user vocalized command;detecting a user proximity using near field communication; and detectinga set programming.
 8. The method of claim 5, wherein the selection eventis at least one from a group consisting of: detecting a selection of abutton on the portable device; detecting, using a motion sensor of theportable device, a movement of the portable device; detecting, using acamera, a user motion or position; detecting, using a microphone, a uservocalized command; detecting a user proximity using near fieldcommunication; and detecting a set programming.